MarketAxess Post Trade is the Post Trade services division of MarketAxess Holdings Inc., a global financial technology firm best known for its electronic trading platforms in fixed income markets. Headquartered in London, with offices in Amsterdam, Paris and Frankfurt, MarketAxess Post‑Trade (formerly Trax) provides critical Post Trade infrastructure to the global financial industry and supports over 700 buy‑side and sell‑side clients worldwide.

The business delivers two distinct service lines: regulatory reporting and trade matching, each designed to address specific operational and compliance challenges across capital markets.

Its regulatory reporting suite of services encompasses an Approved Reporting Mechanism (ARM) and an Approved Publication Arrangement (APA) under MiFID II / MiFIR, alongside a dedicated SFTR reporting service. These solutions enable firms and trading venues to meet their trade and transaction reporting obligations through robust data validation, enrichment, and submission workflows, helping clients maintain accuracy, consistency, and confidence in an increasingly data‑driven regulatory environment.

A key differentiator of the regulatory reporting is its SensAI, MarketAxess Post‑Trade’s data quality assurance and analytics product. SensAI uses advanced analytics and machine‑learning techniques to identify data inconsistencies, detect anomalies, and provide firms with greater transparency into the quality and completeness of their regulatory reporting data. By enabling proactive issue detection, SensAI helps firms reduce remediation effort, improve reporting accuracy, and stay ahead of regulatory scrutiny.

Separately, MarketAxess Post‑Trade provides, MarketAxess Post Trade provides cash and repo matching services to support accurate and timely confirmation of transactions across fixed income and securities financing markets. These solutions help firms reduce operational and settlement risk by enabling near‑real‑time matching, reconciliation, and exception management. The repo matching service, in particular, is widely used to improve efficiency and control in a high‑volume, operationally complex market.

With more than 30 years of experience in Post Trade regulatory reporting and processing, MarketAxess Post‑Trade combines deep regulatory expertise, resilient technology, and a large client network to help firms modernise Post Trade operations with confidence.